ipv6: correct the ipv6 option name - Pad0 to Pad1

The padding destination or hop-by-hop option is called Pad1 and not Pad0.

See RFC2460 (4.2) or the IANA ipv6-parameters registry:
http://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xml

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 9aa3d01..5d32e7a 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -127,7 +127,7 @@
 
 		switch (opt[off]) {
 
-		case IPV6_TLV_PAD0:
+		case IPV6_TLV_PAD1:
 			optlen = 1;
 			break;
 		default:
@@ -171,7 +171,7 @@
 
 		switch (opt[off]) {
 
-		case IPV6_TLV_PAD0:
+		case IPV6_TLV_PAD1:
 			optlen = 1;
 			break;
 		default:
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index a93bd23..a3cded6 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -75,7 +75,7 @@
 			return offset;
 
 		switch (opttype) {
-		case IPV6_TLV_PAD0:
+		case IPV6_TLV_PAD1:
 			optlen = 1;
 			break;
 		default:
@@ -156,7 +156,7 @@
 		int i;
 
 		switch (nh[off]) {
-		case IPV6_TLV_PAD0:
+		case IPV6_TLV_PAD1:
 			optlen = 1;
 			break;
 
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 2e02f7c..5b087c3 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -46,7 +46,7 @@
 	if (!data)
 		return NULL;
 	if (padlen == 1) {
-		data[0] = IPV6_TLV_PAD0;
+		data[0] = IPV6_TLV_PAD1;
 	} else if (padlen > 1) {
 		data[0] = IPV6_TLV_PADN;
 		data[1] = padlen - 2;